The best week ever daily podcasts can be funny. Hit or miss. But they are worth having around for some of the special ones. For instance, bad movies edited down to two minutes.
I also sometimes listen to "this week in tech". Hodgman was on a few times. It can be really to much nerd, tech talk. But it can also be interesting and keep you up on tech news/cool internet sites to visit.
On the media and radio lab, the best from NPR.